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Finding the Fourth Proportional to 135,849.33, 203,704.80 and 79,798.95

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Solution

The fourth proportional to 135,849.33, 203,704.80 and 79,798.95 is: 119,657.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,849.33 : 203,704.80 = 79,798.95 : x
  2. Step 2: Convert to fraction form
    135,849.33/203,704.80 = 79,798.95/x
  3. Step 3: Cross multiply
    135,849.33x = 203,704.80 × 79,798.95
  4. Step 4: Simplify right side
    135,849.33x = 16,255,429,149.96
  5. Step 5: Solve for x
    x = 16,255,429,149.96/135,849.33
  6. Step 6: Final answer
    x = 119,657.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.